Multi-way screen sharing?

I've used iChat's screen sharing on many occasions to work with one other person.
I just had occasion to give an application demo to two colleagues. Given that iChat Theater lets me share a KeyNote or iPhoto presentation with more than one person, I thought iChat's Share a File feature might let me start an application demo. But it won't let me pick a FileMaker database file.
Is there a way to share my screen with more than one person?

Not that I am aware of. (not even using Apple Remote Desktop)
9:00 PM Wednesday; May 14, 2008

Similar Messages

Multi User Screen Sharing

I recently bought a mac mini to replace Win 8 file server and have a question about screen sharing. I have created 2 users one is the main account which i guess is an admin and 1 user as a standard user. If i log into mini as the Main User then screen sharing from remote computer just logs into this account(mirror of the mini) however if i log into mini as stardard user or secondary user then i get an option share display or Log in as the main user. Is there a way i can force this option or behavior if i log into mini as the main user. ie i would like to have mini boot into admin automatically and then be able to log in as a user from a remote computer not affecting the monitor of the main computer. Is this possible?
Thanks,
Matt

Thanks for the link but I had already read that. Problem is that when logged into macmini(computer I want to log into from remote machine) as user a when I try to log in from imac it automatically logs in as user a in screen sharing mode! No option to choose log in as user B or a dialog to choose that option.... It simply starts in screen sharing mode. I have preferences set to allow all users on macmini. If I log in as user b on Mac mini then I have the option to choose to log in as user a which is opposite what I am trying to do. How can I change this behavior?
Thanks again.

Is there a way to switch to single-user mode for screen sharing in Lion?

Hello,
with the new multiple user mode one screen sharing guest can not see the mouse cursor of another - even if they use the same login.
It's a pity, because we use screensharing to discuss the content of the screens with multiple screen sharing users.
It is necessary to point with the cursor to show the other members of this 'screen sharing meeting' things while discussing.
This is not possible anymore with Lion and multi user screen sharing.
Does anybody know a patch or terminal command to switch back to single user mode for screen sharing?
Kind regards
Carl M.

Try using OmniDazzle to help draw attention to what you want:
http://www.omnigroup.com/products/omnidazzle/

IChat Screen Sharing Keeps Disconnecting

I recently bought my first Mac and not so good with all the tech talk but I'll try my best. So I was trying to do Screen Share via iChat with a friend who has a 24" iMac with Mac OS X Leopard. I have a 13" MacBook Pro with Mac OS X Snow Leopard Version 10.6.4. Anyways we have tried to connect both ways, screen sharing her's and mine and it doesn't work. It'll disconnect after about 2 seconds, I can hear the audio sometimes and it'll say "Screen Sharing with ____" and then disconnect. I have screen sharing enabled. I don't know if it has anything to do with my router but I'm with Verizon and they provide my wi-fi. I just checked the error log and it says no errors. Thanks to all who try to help me out.
Message was edited by: HuggyLowDown

Hi,
Welcome to the  Discussions
Since the original Post some info came to light that certain ISPs do not seem to allow VNC conncetions. (his/her ISP Verzion is one of these)
iChat Screen Share is made up of two parts.
An Screen Share over the VNC Protocol and an Audio Chat alongside.
As Audio Only chats and Video Chats use the same ports then if you cannot Video or Audio Only chat then Screen Sharing also will not work.
If the Audio part fails then most likely you will get the Pop Up.
I have also seen the Pop up show up if one end has not set the Screen Share Enabled item in the Video Menu (Selecting this toggles the tick On and Off and it has to be ticked).
If a person has Not turned On Screen Sharing then can in fact start the Screen Share as long as they are only sharing Their Screen. (They can not ask to see the Buddy's Screen - nor can the Buddy Start the Screen Sharing).
DOS or SPI will be in the router.
Some devices have it as separate items.
For Instance on a Netgear device it is in the WAN set up page in the menu down the left.
Same for Sagems
Some include it in the firewall.
In this case an Example would be a Netopia which has a 4 level firewall in which High and Medium has both SPI and DOS.
Also a Linksys (on those that have a firewall option in the Security page) have SPI and DOS in the firewall but little info on the screen or in help to tell you
8:58 PM Thursday; October 21, 2010
Please, if posting Logs, do not post any Log info after the line "Binary Images for iChat"

Is there a way to access remote login and screen sharing logs?

I have a very high suspicion that my macbook air has been accessed through remote login. Here's what happened. I closed my macbook air, letting it sleep, and left my house. After coming back I found it logged into the Guest account (which I didn't know was enabled). Remote login, Remote sharing and file sharing were enabled but I disabled them. I can't remember enabling them but maybe I did.
I am also on a local network with about 8 other devices connected. I looked through /private/var/log/system.log but couldn't find anything concrete. I have yet to log out of the guest account and have connected to another internet connection just to be on the safe side.
My other user account is passworded and I could switch back to it from guest.
So if my macbook was accessed through remote login, is there a way to tell from what IP address it came from?
Please help me get to the bottom of this.

May 20 13:03:44 XXXXXXXX-MacBook-Air.local loginwindow[51]: ERROR | ScreensharingLoginNotification | Failed sending message to screen sharing GetScreensharingPort, err: 1102
May 20 13:03:44 XXXXXXXXMacBook-Air.local loginwindow[51]: USER_PROCESS: 51 console
May 20 19:11:14 XXXXXXXXXXX-MacBook-Air.local loginwindow[51]: ERROR | ScreensharingLoginNotification | Failed sending message to screen sharing GetScreensharingPort, err: 1102
I guess if it did happen it would have said so. Thanks anyway.

Best Way To Set Up Screen Sharing Over The Internet

What is the best/simplest way to set up screen sharing over the internet so I can remotely control my Mac at home from my Mac at work? My Mac at work is running 10.5.6, my Mac at home is running 10.4.11.

simplest
Get both Macs up to Mac OS X (Leopard). Then use Apple's MobileMe Back-to-my-Mac service.
Or, use iChat screen sharing along with the iChat free 3rd party Chax add-on which allows selected iChat Buddies to auto-accept an iChat screen sharing request. Free AOL Instant Messaging accounts can be used as the iChat accounts.
If you do not want to upgrade all systems to Leopard...
Next would be using the free LogMeIn.com account, or similar service. This will work
The above avoid needing to figure out how you get through the home routers, and provide encrypted screen sharing sessions.
After that you need to arrange for router port forwarding. If you want secure connections, then you should arrange to port forward the SSH port 22, then use ssh tunnels for VNC based screen sharing connections. There are GUI based utilities that will help setting up SSH tunnels. Do some searches over at VersionTracker.com or MacUpdates.com

How do I activate the Multi-Screen Sharing in Lion?

Hi,
How do I activate the Multi-Screen Sharing in Lion? I was told it was on by default but when my partner logs in from his machine, I can't also login to the actual Mac itself. When I first enabled Sharing it allowed him to connect even though I was already logged in but it was very sluggish and eventually the whole system crashed.
Any help would be appreciated.

Found it!
Make sure you have multiple desktops already running.
Go to System Preferences->Keyboard
Choose Keyboard Shortcuts
On the left select Mission Control. On the right, I have "Switch to Desktop 1, Switch to Desktop 2, etc"
On my iMac they were checked, and working.
On my MacBook they were unchecked. Checked the boxes, now it works.

Any way to use Screen Sharing in Full Screen mode?

"Back to my Mac" screen sharing works great for me, but my remote screen is small enough as it is for a windowed VNC session... is there any way to switch to Full Screen in the Screen Sharing application?
thanks!

Did you go to the "Screen Sharing" menu and select "Preferences?" I don't see full screen, but there are some view options.

Screen Sharing not working both ways!

I have had screen sharing and back to my mac set up for ages between my mac mini and macbook. It worked fine until now. I can still connect to my laptop from my mac mini, but it doesn't work the other way, and the majority of the time i am using my laptop to connect to my mac mini.
please help me!

Same thing happening with me. I want to go from my Macbook to Macbook Pro and vis versa. But it will only go from MB to MBP not the other way. I set up both settings to the exact same thing. But nothing is working so far.

Since me and my mother moved from iChat to iMessage bêta, screen sharing works only one way. I can share my screen with her but not the reverse. When actually what I would like to do is share her screen. Video works fine both ways.

Screensharing works only one way since we moved from iChat to iMessage bêta. Before that we have never had any problem with screen sharing. We haven't changed anything else, just installed iMessage. What I need to do is share her screen, and the only thing I can do is share my screen...
Thanks for your help.

HI,
On the whole I am finding it very stable. (it presents the same quirks in the same manner each time)
It has some things that are more Feature requests than "Bugs" per se about the way it works that I would like to change.
It can also be difficult to tell exactly what is going on whenyou are hearing about it third hand.
Sounds like you have a plan.
8:35 PM Tuesday; March 20, 2012
Please, if posting Logs, do not post any Log info after the line "Binary Images for iChat"
 iMac 2.5Ghz 5i 2011 (Lion 10.7.3)
 G4/1GhzDual MDD (Leopard 10.5.8)
 MacBookPro 2Gb (Snow Leopard 10.6.8)
 Mac OS X (10.6.8),
"Limit the Logs to the Bits above Binary Images."  No, Seriously

Screen sharing only in one way

Hi, I'm doing screen sharing everyday -mostly for helping other with their macs- with no problem but with one person (an uncle of mine).
He uses a new 20" iMac (the late one), we can text chat, videoconferencing, audioconferencing and screen sharing in one way, I can let him control my mac but it's impossible to let me control his Mac.
The fourth button in ichat (where to ask for permission or give permission to screen sharing) is half enable, only one of the options is enabled to click on, the option for "ask for screen sharing" isn't. So I can give him permission to control my mac but not to control his mac.
How can this be possible? I asume screen sharing works in the same protocols in both ways, above all when we can do video and audio conferencing.
Thanks in advance for your help

Hi Ralph,
When you have ticked the screen sharing option in iChat>video>screen sharing and your buddy "high lights" (one click) your screen name the screen sharing icon will be displayed in black on his end indicating "enabled".
This way he can ask for your permission to share your screen.
When your contact has not ticked the screen sharing option the screen sharing icon in your contact list will be grey.
When your contact has ticked the screen sharing option as well the screen sharing icon in your contact list will be black as well.
Of course all other requirements for iChat screen sharing have to be met.
More important: I wish you a very happy new year!

Screen sharing, audio is one-way only.

I have suddenly lost the ability to hear the other person when screen sharing. I screen share my father's computer all the time to help him with general computer issues. I have never had a problem with audio. I can always hear him, and he can always hear me.
Suddenly, this is not working anymore. He can hear me but I cannot hear him. This occurred in the middle of a screen sharing session. We were talking to each other and then suddenly he could not hear me anymore.
What's more puzzling is that I connect to my brother's computer in the exact same way and I do not have a problem with him. Audio is two-way.
I checked my father's audio settings and he doesn't appear to have muted his mic or disabled audio. My audio output is fine. I can hear system sounds, iTunes music, etc…
Could he have pressed a function key or done something without knowing and disabled his mic?
Thoughts?

Hi,
Possibles (but not likely).
1) In System Preferences > Sound > Input he turned the volume down or changed the Mic selection.
2) In iChat > Preferences > Video section he changed the Mic selected.
3) In iChat Video Menu he "turned Off"/Disabled the Microphone Enabled item (He would have to be seeing his own Screen and have control of the Mouse)
4) Similar for the "Show Audio potion in the View Menu.
NONE (2, 3 and 4) of these have keystrokes set up in iChat or the System (1).
I am unaware if you leave an Audio or Video chat window open after the call was ended at the far end that the Mic Mute button still works. I could see that he may have such a window on his Desktop but don't see this as a working option.
Most Audio drop outs occur in Video chats and it is Internet Speed/bandwidth related (with a fair amount of Processor ability)
If the bandwidth is low (Lower that 256kbps and closer to 100kbps) then if the Frame rate is over 15fps then that computer may not be able to process the Audio as well as the Video pics and will drop the Audio.
Audio Only chats come in around 48-50kbps (top end dial-up) in 1-1 chats.
Screen Sharing at about the 120-150kbps mark (depending on how large the "Display is at the sending end)
This means if he dropped the Bandwidth Setting in iChat > Preferences > Video Section > Bandwidth Limit drop down the Bit rate from his end may have dropped (slowly/Buffered) to a point where Audio failed to be sent.
The reverse would also be true if you dropped your Bandwidth to try and "Smooth out" the movement of the mouse/pointer.
For both of these last two things try iChat with the Connection Doctor (Video Menu Open. (You are likely to need to switch back and forth between your Screen and his).
I cannot think of anything that is "less intentional" like hitting the Space Bar or other keystroke or such.
8:24 PM Saturday; March 19, 2011
Please, if posting Logs, do not post any Log info after the line "Binary Images for iChat"

Remote Access - Screen Sharing - possible to have a different session?

I was wondering of there was some way, maybe using X11, of doing screen sharing to my iMac but with a different session.
Can I log-in across the network and get a separate logged-in session from the one on the main screen?
If so, how do I do it? Is there a 'How to' somewhere?
I'd imagine something like setting up a Display parameter for X11 that can run remotely on my machine, so I can log on as a different person and run a different session without affecting what's on the main screen. Effectively to be multi-user access.

On a Unix or Linux system (and OS/X is a Unix system) you can have multiple remote sessions running under X11.
Mac OS X does NOT use X11 as its graphic engine. X11 is a side car on Mac OS X, provided so users that need to access Linux/Unix system which do use X11 have a way of displaying X-Windows output.
Mac OS X itself does not use X11 in any way. So even if you could do what you want, it would not get any of the native Mac OS X applications displayed on your system.
As someone else has pointed out, there is a trick with Fast User Switching and the Vine Server that can allow multiple users to access the system. It is a bit of a hack, and less than perfect, but if it works for you, that might be an option.

Screen Sharing, one user?

I have upgraded a couple of my machines to Lion, and have noticed the switch to allow multi-user/virtual screen sharing.
Is there any way to mimic the old behaviour?
What I use screen sharing for is when my wife or kids need help, or to check in on what the kids are doing. I would like to be able to log on and control the desktop, without knowing which user is connected.
Thanks

Correct.So if you are using a Lion(you) to connect to a Snow leopard(kids) then you'll run into this problem
but if its you who runs Snow leopard and kids are running on lion then this whole thread was pointless LOL.
jrsmobile wrote:
I do know their passwords, and they are set to not allow them to change them. Problem there is that you have to know which to log in as
Good question. Are there a lot of accounts?I am unsure what the best setup for you might be. I reckon a 3rd party VNC might just do the trick

Can I display EyeTV's live TV over HDMI-out and be able to see my desktop using screen-sharing on a headless mac-mini used as a media-box?

Hi,
I'm thinking of buying a new mac-mini to replace my current one which acts as an iTunes server and records TV programs using eyeTV. I connect using screen-sharing/VNC to be able to do stuff on it (like handbrake etc.)
I have eyeTV with a satelite receiver and I want to change the setup so that:
- the new mac-mini continues to work as an iTunes server (and handbrake workhorse)
- I can use the HDMI output (inc. audio) to show eyeTV's live TV full-screen app
- I can connect using screen-sharing/VNC to the mac-mini and see my normal desktop to be able to maintain it etc. but this is a headless display (no screen is connected to the display-port).
- recorded media I'd play through the appleTV2 still + rentals etc. unless anyone knows if eyeTV software can offer up iTunes content? I don't like the eyeTV recordings in general as it seems very slow to me for access when there are lots of recordings and wouldn't be available in other apleTVs in the house AFAIK.
The main benefit that this gives me is that I'd no longer need a seperate satelite box to watch live TV and can add more eyeTV hardware to get additional TV channels all through the same HUD on the TV for ease of access.
Does this seem possible in theory & practice (ie are there any gotcha's to consider?)
- can I force the HDMI output resolution to 1080i as I go via an amp to the TV and the appleTV2 drops to low-res in this configuration so I have had to find a workaround for that.
- does the mac-mini have IR input that can be programmed?
- Does eyeTV software remain stable for long periods?
- Does the HDMI out have any handshake issues that would need a reset of the display (somehow)?
thanks in advance for any thoughts/contributions
Lee

I think the easiest way to do this is to have the EyeTV app running in one user account and sent via HDMI to the TV, and use a separate user account for Screen Sharing. Both logins can be active at the same time and with Lion you can connect via screen sharing to which ever login you need.
With regards to the Mac video resolution changing, when it is not the current input on your AV receiver. This is 'normal', if the Mac sees no signal it drops down the a lower level. What you need is to buy a HDMI Detective Plus which tricks the Mac in to always seeing a signal and hence it will not drop down the resolution. See http://www.gefen.com/kvm/dproduct.jsp?prod_id=8005
The Mac mini does have an IR receiver. This can be used with the EyeTV app, iTunes, and similar. Yes I believe EyeTV would run for prolonged periods quite happily, it is has been around for a long time and had most of the rough edges polished off. However one issue you will have to deal with is that it does not automatically update its program guide data. For this you might have to write or modify an AppleScript. Elgato support or their user forums will be a lot of help.
You can set EyeTV to convert recordings to an iTunes (Apple TV) compatible format and then delete them from EyeTV.
The HDMI Detective should solve your handshaking problems.

Multi-way screen sharing?

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